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Molecular shape of proteins primary, secondary and tertiary structures

Molecular shape of proteins primary, secondary and tertiary structures [Pg.505]

This covalent bonding arises as a result of biochemical oxidation of the thiol groups in two cysteine residues, and it may also be achieved chemically with the use of mild oxidizing agents. This modification of thiol groups may thus loop a polypeptide chain or cross-link two separate chains. It also significantly modifies the properties of a [Pg.505]

Oxidation with stronger oxidizing agents, e.g. potassium permanganate or performic acid, converts the disulfide to two molecules of a sulfonic acid (see Section 7.13.1), namely cysteic acid. This reaction [Pg.506]

The peptide hormone insulin is produced by the pancreas and plays a key role in the regulation of carbohydrate, fat, and protein metabolism. In particular, it has a hypoglycaemic effect, lowering the levels of glucose in the blood. A malfunctioning pancreas leads to a deficiency in insulin synthesis and the condition known as diabetes. This results in increased amounts of glucose in the blood and urine, diuresis, depletion of carbohydrate stores, and subsequent breakdown of fat and protein. Incomplete breakdown of fat leads to the accumulation of ketones [Pg.506]

Human insulin is composed of two straight-chain polypeptides joined by disulfide bridges. [Pg.507]


MOLECULAR SHAPE OF PROTEINS PRIMARY, SECONDARY AND TERTIARY STRUCTURES... [Pg.511]




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Molecular Structure of

Molecular protein

Molecular shape

Molecular shapes and

Molecular structure and

Molecular structure shape

Primary and secondary

Primary structure

Primary structure of proteins

Protein primary

Protein primary structure

Protein secondary

Protein secondary structure

Protein shape

Protein tertiary

Protein tertiary structure

Protein tertiary structure and

Proteins molecular shape

Proteins molecular structure

Proteins primary, secondary and tertiary structure

Proteins secondary structure and

Secondary shaping

Secondary structure

Secondary structure of proteins

Secondary tertiary

Shape and structure

Shaping, primary

Structural shapes

Structure of proteins

Structures Tertiary structure

Tertiary structure

Tertiary structure of proteins

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